On Mon, Aug 19, 2013 at 6:54 AM, Alan Gutierrez <a...@prettyrobots.com> wrote: > I'm implementing a collection of non-cryptographic hash algorithms for use in > tables and data verity in pure-JavaScript with native counterparts. > > https://github.com/bigeasy/hash > > The hashes I've implemented so far produce keys that are a multiple of 32-bit, > where each 32-bits represents a register in hash algorithm, much like SHA1. > > I assume that when encoded to hex, big-endian is the correct endianness for > each > register. From what I can see, sha1 encodes it's buffer with the same > endianness > as it's hex string representation, so I assume that means that the buffer is > encoded as big endian. Does anyone know for certain?
I haven't checked but I'm reasonably sure that OpenSSL uses big-endian internally. The generated x64 assembly contains a lot of byte swaps, which is a pretty strong indicator. Node.js doesn't care either way, however. When it encodes the binary result to hexadecimal, it does so on a byte-by-byte basis. > Now that I'm developing native implementations on my Intel machine, the > outcome > is always little endian. Should I convert my 32-bit words to big-endian before > converting them to a `Buffer`? > > Also, while I'm at it, what big-endian hardware does Node.js run on at the > moment? Did the port to MIPs ever happen? Anyone running Node.js on an ARM in > big-endian mode? Any past dicussions in Node.js land of endianness and woe? The MIPS port exists (and works) but it only runs in little-endian mode. Same for ARM, by the way. -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to nodejs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
